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Joshua McKenzie commented on CASSANDRA-13305:
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[~blambov] to review
> Slice.isEmpty() returns false for some empty slices
> ---------------------------------------------------
>
> Key: CASSANDRA-13305
> URL: https://issues.apache.org/jira/browse/CASSANDRA-13305
> Project: Cassandra
> Issue Type: Bug
> Reporter: Sylvain Lebresne
> Assignee: Sylvain Lebresne
> Fix For: 3.0.x, 3.11.x
>
>
> {{Slice.isEmpty}} is currently defined as {{comparator.compare(end, start) < 0}} but
this shouldn't be a strict inequality. Indeed, the way {{Slice.Bound}} is defined, having
a start equal to an end implies a range like {{[1, 1)}}, but that range is definitively empty
and something we shouldn't let in as that would break merging and other range tombstone related
code.
> In practice, if you can currently insert such empty range (with something like {{DELETE
FROM t WHERE k = 'foo' AND i >= 1 AND i < 1}}), and that can trigger assertions in {{RangeTomstoneList}}
(and possibly other problem).
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